Signal Processing and Environmental Conditions for Infrared Thermometers
Infrared thermometer Signal processing function:
Measuring discrete processes (such as parts production) is different from continuous processes, requiring infrared thermometers to have signal processing functions (such as peak hold, valley hold, average value). For example, when measuring the temperature of the glass on the conveyor belt, it is necessary to use the peak value to hold, and the output signal of its temperature is sent to the controller.
Infrared Thermometer Environmental Condition Considerations:
The environmental conditions of the infrared thermometer have a great influence on the measurement results, which should be considered and properly resolved, otherwise it will affect the temperature measurement accuracy and even cause damage to the thermometer. When the ambient temperature is too high and there is dust, smoke and steam, you can choose the protective cover, water cooling, air cooling system, air blower and other accessories provided by the manufacturer. These accessories can effectively solve the environmental impact and protect the thermometer to achieve accurate temperature measurement. When determining accessories, standardized services should be requested as much as possible to reduce installation costs. When smoke, dust or other particles degrade the measured energy signal, a two-color thermometer is the best choice. Under noise, electromagnetic field, vibration or inaccessible environmental conditions, or other harsh conditions, the fiber optic two-color thermometer is the best choice.
In applications with sealed or hazardous materials such as containers or vacuum chambers, the thermometer views through a window. The material must be strong enough and pass through the operating wavelength range of the pyrometer being used. It is also necessary to determine whether the operator also needs to observe through the window, so the appropriate installation location and window material should be selected to avoid mutual influence. In low-temperature measurement applications, Ge or Si materials are usually used as windows, which are opaque to visible light, and the human eye cannot observe the target through the window. If the operator needs to pass through the window target, an optical material that transmits both infrared radiation and visible light should be used. For example, an optical material that transmits both infrared radiation and visible light should be used as the window material, such as ZnSe or BaF2.
Infrared Thermometer Simple to operate and easy to use:
Infrared thermometers should be intuitive, easy to operate, and easy for operators to use. Among them, portable infrared thermometers are small, light, and portable temperature measuring instruments that integrate temperature measurement and display output. The display panel can display temperature and output various temperature information, and some can be operated by remote control or computer software program.
In the case of harsh and complex environmental conditions, a system with a separate temperature measuring head and display can be selected for easy installation and configuration. The signal output form matching the current control equipment can be selected.
Calibration of infrared radiation thermometers:
Infrared thermometers must be calibrated to correctly display the temperature of the measured object. If the temperature measurement of the thermometer used is out of tolerance during use, it needs to be returned to the manufacturer or the maintenance center for re-calibration.
